8+ Powerful Best Vape for Nic Salts 2024


8+ Powerful Best Vape for Nic Salts 2024

The optimum system for vaporizing nicotine salt e-liquids is a topic of appreciable curiosity to each new and skilled vapers. These units are engineered to effectively vaporize e-liquids formulated with nicotine salts, offering a smoother nicotine supply and sometimes a extra satisfying expertise in comparison with conventional freebase nicotine e-liquids. Examples of such units embrace pod techniques, sure pen-style vaporizers, and a few low-wattage field mods outfitted with appropriate coils.

The choice of an acceptable system is important for a number of causes. It impacts the effectivity of nicotine supply, the flavour profile skilled, and the general satisfaction derived from vaping. Traditionally, early vaporizers weren’t well-suited for the upper nicotine concentrations present in nicotine salt e-liquids, resulting in harsh experiences. The event of specialised units addressed this challenge, permitting for extra managed and pleasant use. The rising recognition of nicotine salts has pushed innovation in vaporizer expertise, resulting in a various vary of choices catering to completely different preferences and desires.

The following dialogue will discover the assorted components influencing the choice of an acceptable system, together with system kind, coil resistance, wattage settings, and particular options that contribute to an enhanced vaping expertise. This evaluation goals to offer a complete understanding to tell the buying choices of people looking for to make use of nicotine salt e-liquids successfully.

1. Pod System

Pod techniques signify a major section of units used for vaporizing nicotine salt e-liquids. Their design and operational traits typically align properly with the properties of nicotine salts, making them a typical alternative for people looking for a compact and user-friendly vaping expertise.

  • Low Wattage Operation

    Pod techniques are usually designed for low-wattage output, sometimes between 10 and 20 watts. This decrease energy vary is well-suited for nicotine salt e-liquids, because it permits for environment friendly vaporization with out producing extreme warmth. Extreme warmth can degrade the flavour of the e-liquid and doubtlessly result in a harsh vaping expertise. The decrease wattage additionally extends battery life, a sensible consideration for a conveyable system.

  • Excessive Resistance Coils

    Pod techniques sometimes make the most of coils with a better resistance, typically above 1.0 ohm. Larger resistance coils contribute to a extra managed and average vapor manufacturing, which is according to the meant use of nicotine salts. These coils are designed to successfully vaporize the e-liquid at decrease energy ranges, guaranteeing a clean and constant nicotine supply. The upper resistance additionally restricts airflow, offering a tighter draw much like conventional cigarettes, interesting to these transitioning from smoking.

  • Compact and Moveable Design

    The compact and transportable design of pod techniques is a key issue of their recognition. Their small measurement makes them simply pocketable and discreet to make use of. This portability enhances person comfort, permitting for vaping on the go. The self-contained nature of pod techniques, with built-in or replaceable pods, minimizes the necessity for carrying separate e-liquid bottles or instruments for upkeep, additional contributing to their comfort.

  • Ease of Use

    Pod techniques are usually designed for ease of use, that includes easy operation with minimal settings to regulate. This simplicity makes them a gorgeous possibility for freshmen or people looking for a hassle-free vaping expertise. Many pod techniques function draw-activated firing, eliminating the necessity for buttons. Refilling pods is commonly easy, with simply accessible fill ports. This user-friendliness lowers the barrier to entry for these new to vaping.

The mix of low wattage operation, excessive resistance coils, compact design, and ease of use contributes to the suitability of pod techniques for nicotine salt e-liquids. Whereas different sorts of units may also be used, pod techniques present a handy and sometimes most well-liked possibility for a lot of vapers using nicotine salts. They provide a balanced expertise, prioritizing taste, nicotine supply, and person comfort in a compact kind issue.

2. Coil Resistance

Coil resistance is a elementary think about figuring out the suitability of a vaping system for nicotine salt e-liquids. The resistance of the coil, measured in ohms, dictates the quantity of present drawn from the battery and, consequently, the warmth generated throughout the coil. The suitable coil resistance optimizes vaporization of the e-liquid, impacting taste, vapor manufacturing, and nicotine supply. Utilizing an unsuitable coil resistance can lead to a suboptimal vaping expertise, characterised by harshness, muted taste, or coil burnout.

Larger resistance coils (sometimes above 1.0 ohm) are generally paired with nicotine salt e-liquids. These coils require decrease wattage to function successfully, producing a gentler vapor and stopping the over-vaporization that may happen with higher-powered sub-ohm coils. That is essential, as nicotine salts are absorbed extra effectively than freebase nicotine, and extreme vapor manufacturing can result in an amazing nicotine consumption. Conversely, sub-ohm coils (under 1.0 ohm) are usually used with decrease nicotine concentrations, as they produce considerably extra vapor per draw. For instance, a pod system designed for nicotine salts may use a 1.2-ohm coil at 12 watts, whereas a sub-ohm tank meant for freebase nicotine may use a 0.3-ohm coil at 40 watts. Misapplication of those coil sorts can result in undesirable outcomes.

In abstract, choosing the right coil resistance is paramount when utilizing nicotine salt e-liquids. Larger resistance coils working at decrease wattages present a smoother and extra managed vaping expertise, optimized for environment friendly nicotine supply with out harshness. Understanding the connection between coil resistance and wattage output permits for knowledgeable choice, guaranteeing that the chosen system supplies the meant efficiency and satisfaction. Failure to think about this issue can result in an unsatisfactory expertise and even potential well being issues related to extreme nicotine consumption.

3. Wattage Output

Wattage output, measured in watts, dictates the facility delivered to the atomizer coil, influencing the speed of e-liquid vaporization. With nicotine salt e-liquids, controlling wattage is essential for a palatable expertise. Extreme wattage can result in overheating of the e-liquid, leading to a harsh, burnt style and doubtlessly delivering an amazing quantity of nicotine in a single inhalation. Inadequate wattage, conversely, might end in insufficient vaporization, resulting in weak taste and unsatisfactory nicotine supply. Due to this fact, the optimum system balances wattage output with coil resistance and e-liquid formulation.

Gadgets designed for nicotine salts sometimes function inside a decrease wattage vary, usually between 10 and 20 watts. Pod techniques and a few pen-style vaporizers exemplify this method. For example, a pod system with a 1.2-ohm coil is likely to be optimized for 12 watts, offering a clean vapor and managed nicotine supply. Conversely, sub-ohm units meant for freebase nicotine e-liquids typically function at considerably greater wattages (e.g., 40-80 watts or extra) resulting from their decrease resistance coils. Trying to make use of a high-wattage sub-ohm system with nicotine salts is mostly inadvisable, because the ensuing vapor manufacturing and nicotine supply may be overwhelming and doubtlessly dangerous. Examples of such misuse incessantly end in coughing, discomfort, and an aversion to vaping.

In conclusion, understanding the connection between wattage output and nicotine salt e-liquid is paramount for a profitable vaping expertise. Deciding on a tool with adjustable wattage or one particularly designed for the decrease energy necessities of nicotine salts is crucial. Cautious consideration to this issue ensures a clean, flavorful, and managed vaping expertise, minimizing the chance of harshness or extreme nicotine consumption. This consideration is a key determinant in figuring out a tool appropriate to be used with nicotine salt formulations.

4. Airflow Management

Airflow management is a major issue influencing the efficiency of units used with nicotine salt e-liquids. The manipulation of airflow straight impacts vapor density, taste depth, and the general draw resistance, finally shaping the person’s vaping expertise. Gadgets with adjustable airflow present a higher diploma of customization, permitting customers to fine-tune their expertise to match private preferences and the particular traits of the e-liquid getting used.

  • Tight Draw vs. Unfastened Draw

    Airflow management permits customers to pick between a decent draw, resembling the draw of a standard cigarette, or a looser, extra ethereal draw. A tighter draw concentrates the flavour and will increase the throat hit, which may be fascinating for these transitioning from smoking or preferring a extra intense nicotine supply. Conversely, a looser draw produces extra vapor and a cooler, smoother inhalation. The selection between these draw types is extremely subjective and is dependent upon particular person desire and the kind of nicotine salt e-liquid getting used. Gadgets with out adjustable airflow supply a pre-set draw resistance, which can not swimsuit all customers.

  • Taste Depth and Vapor Manufacturing

    Airflow straight impacts the depth of taste skilled throughout vaping. Restricted airflow tends to pay attention the vapor, resulting in a extra pronounced taste profile. Open airflow dilutes the vapor, leading to a subtler taste. The correlation between airflow and vapor manufacturing can be vital. Extra open airflow permits for higher vapor manufacturing, whereas restricted airflow limits vapor output. Customers typically modify airflow to steadiness taste depth and vapor manufacturing in response to their particular person preferences. The very best system provides enough adjustment to realize this steadiness.

  • Cooling Impact

    Elevated airflow supplies a cooling impact on the vapor. This cooling impact can mitigate the harshness generally related to greater nicotine concentrations present in nicotine salt e-liquids. By permitting extra air to combine with the vapor, the temperature is lowered, leading to a smoother inhalation. Customers who discover nicotine salt e-liquids too harsh might profit from units with adjustable airflow, enabling them to customise the vapor temperature to their liking. That is significantly necessary for customers delicate to throat hit.

  • Coil Longevity and E-liquid Consumption

    Airflow can not directly have an effect on coil longevity and e-liquid consumption. Inadequate airflow can result in coil overheating, shortening its lifespan. Conversely, extreme airflow can improve e-liquid consumption as extra e-liquid is vaporized with every inhalation. Discovering the optimum airflow setting may help to maximise coil life and reduce e-liquid utilization, contributing to a cheaper vaping expertise. This steadiness is crucial for long-term satisfaction with any vaping system.

In abstract, airflow management is a key determinant within the suitability of a tool to be used with nicotine salt e-liquids. It permits customers to customise their vaping expertise to match private preferences, optimize taste depth, management vapor manufacturing, and mitigate potential harshness. Gadgets with adjustable airflow supply a higher diploma of flexibility and management, making them a extra versatile possibility for vapers utilizing nicotine salts. The flexibility to fine-tune the airflow contributes considerably to total satisfaction and long-term enjoyment of the vaping expertise.

5. Battery Capability

Battery capability, measured in milliampere-hours (mAh), straight impacts the usability and comfort of any system used for vaporizing nicotine salt e-liquids. The capability determines the period of use between fees and influences the general portability and practicality of the system. Deciding on a tool with sufficient battery capability is crucial for sustaining constant efficiency and avoiding frequent charging, significantly for people who vape usually all through the day.

  • Utilization Patterns and Battery Life

    The required battery capability is straight proportional to particular person vaping habits. Heavy customers who vape incessantly will necessitate units with greater mAh scores to keep away from the inconvenience of mid-day charging. For instance, a vaper consuming 3-5ml of e-liquid every day may require a tool with a 1000mAh or bigger battery. Conversely, gentle customers might discover {that a} system with a 500mAh battery adequately meets their wants. Understanding particular person utilization patterns is essential in figuring out the suitable battery capability.

  • Machine Dimension and Portability

    A trade-off exists between battery capability and system measurement. Gadgets with bigger batteries are usually bulkier and heavier, doubtlessly compromising portability. Compact pod techniques, favored for his or her discreetness, typically function smaller batteries. Balancing the necessity for prolonged battery life with the need for a conveyable system is a key consideration. Some producers prioritize battery effectivity by optimized energy administration, permitting for cheap battery life in smaller kind components.

  • Wattage Output and Battery Drain

    The chosen wattage output influences battery drain. Gadgets working at greater wattages devour extra energy, leading to shorter battery life. Since nicotine salt e-liquids are sometimes vaporized at decrease wattages, units designed for these e-liquids usually require much less battery capability in comparison with sub-ohm units. Nonetheless, even at decrease wattages, steady use will deplete the battery, necessitating periodic charging. The connection between wattage and battery consumption should be thought of when choosing a tool.

  • Charging Strategies and Comfort

    The strategy of charging additionally impacts person comfort. Gadgets with USB-C charging supply quicker charging occasions in comparison with older Micro-USB requirements. Go-through charging, which permits vaping whereas the system is plugged in, may be useful for customers who vape incessantly. Nonetheless, counting on pass-through charging might point out that the system’s battery capability is inadequate for particular person wants. Evaluating the charging methodology and its affect on total comfort is a crucial side of system choice.

The sides of battery capability, utilization patterns, system measurement, wattage output, and charging comfort are interrelated and should be thought of holistically when figuring out an acceptable system for nicotine salt e-liquids. A tool with a battery capability that aligns with particular person vaping habits, balances portability with energy necessities, and provides handy charging choices will contribute to a extra satisfying and constant vaping expertise. Choosing the right system necessitates a cautious analysis of those components.

6. Leak Resistance

Leak resistance is a essential attribute in any system meant to be used with nicotine salt e-liquids. The propensity for e-liquid leakage not solely creates a messy and inconvenient person expertise, but in addition raises potential security issues. E-liquid can harm clothes, digital units, and will trigger pores and skin irritation upon contact. Gadgets exhibiting poor leak resistance undermine the benefits of nicotine salts by introducing avoidable issues. The choice of a leak-resistant system, subsequently, is a major issue when looking for an optimum vaping expertise with nicotine salts.

A number of design options contribute to efficient leak resistance. Exact manufacturing tolerances in pod or tank building are paramount to forestall e-liquid seepage. Strong sealing mechanisms across the coil and fill ports are additionally important. Prime-fill designs, versus bottom-fill, can cut back the probability of leakage resulting from gravity. Moreover, the fabric used within the building of seals and o-rings should be chemically appropriate with the e-liquid to forestall degradation and subsequent leakage. Gadgets with well-designed airflow techniques additionally mitigate leakage by sustaining acceptable strain differentials throughout the tank or pod. Sure fashions incorporate specialised wicking supplies designed to forestall saturation and flooding, additional decreasing the chance of leakage.

In conclusion, leak resistance straight impacts the usability and total satisfaction derived from utilizing nicotine salt e-liquids. The choice of a tool engineered with sturdy leak prevention measures is essential for a clear, handy, and secure vaping expertise. Whereas no system is solely resistant to leakage beneath all circumstances, fashions prioritizing meticulous design and high quality building supply a considerably lowered danger. By prioritizing leak resistance, producers contribute to a extra constructive and dependable expertise for customers of nicotine salt e-liquids.

7. Refill Methodology

The strategy by which a vaping system is refilled with e-liquid is a essential issue influencing its suitability to be used with nicotine salt formulations. Gadgets providing handy and safe refill strategies improve the person expertise, minimizing mess and decreasing the probability of leakage. The refill methodology straight impacts the benefit of use, significantly for people who vape incessantly or are new to vaping. An inefficient or sophisticated refill course of can detract from the advantages of nicotine salts, comparable to their smoother supply and better nicotine focus. For instance, a tool with a small, difficult-to-access fill port might end in spillage and wasted e-liquid, counteracting the cost-effectiveness of utilizing refillable units. Conversely, a top-fill system with a big, simply accessible port permits for fast and clear refills, making the system extra interesting to customers of nicotine salts.

Refill strategies generally encountered embrace top-fill, bottom-fill, and side-fill designs, every possessing benefits and drawbacks. Prime-fill techniques usually supply higher comfort as they permit for refills with out eradicating the pod or tank from the system. This reduces the chance of unintentional activation and subsequent coil burnout. Backside-fill techniques, whereas doubtlessly extra vulnerable to leakage through the refill course of, can generally present a safer seal as soon as the fill port is closed. Facet-fill techniques supply a compromise, permitting for refills with out full disassembly whereas sustaining a comparatively safe seal. The kind of fill port closure additionally performs a major position; rubber plugs, screw-on caps, and sliding mechanisms are all employed, every affecting the benefit and safety of the refill course of. The capability of the refillable tank or pod additionally influences the frequency of refills required, impacting total comfort. For example, a small 1ml pod might necessitate frequent refills all through the day, whereas a bigger 3ml tank provides higher autonomy.

In abstract, the refill methodology is inextricably linked to the person expertise when vaping nicotine salts. Gadgets providing handy, clear, and safe refill mechanisms contribute considerably to total satisfaction. Elements comparable to fill port location, closure kind, and tank capability should be thought of when evaluating the suitability of a tool for nicotine salt e-liquids. The target is to pick a tool that streamlines the refill course of, minimizing mess and maximizing person comfort, thereby enhancing the advantages of utilizing nicotine salt formulations. Failure to prioritize an acceptable refill methodology can detract from the general vaping expertise, no matter different fascinating system traits.

8. Nicotine Energy

Nicotine energy is a paramount consideration when choosing a tool for nicotine salt e-liquids. The focus of nicotine, measured in milligrams per milliliter (mg/mL) or as a proportion, straight impacts the person’s expertise and satisfaction. Pairing the suitable nicotine energy with a appropriate system is essential for avoiding over- or under-saturation, thereby guaranteeing a palatable and efficient nicotine supply.

  • Machine Kind and Nicotine Supply

    Totally different system sorts ship nicotine at various charges. Pod techniques, for instance, are sometimes designed for greater nicotine strengths (e.g., 30-50mg/mL) resulting from their decrease energy output and restricted airflow. These units ship nicotine effectively with every puff. Conversely, sub-ohm units, characterised by excessive energy output and open airflow, are higher fitted to decrease nicotine strengths (e.g., 3-6mg/mL). Utilizing high-strength nicotine salts in a sub-ohm system can result in an amazing and doubtlessly disagreeable expertise. This distinction underscores the significance of matching system kind to nicotine focus.

  • Particular person Tolerance and Desire

    Particular person tolerance to nicotine varies considerably. Elements comparable to physique weight, metabolism, and prior smoking historical past affect a person’s sensitivity to nicotine. A heavy smoker transitioning to vaping might require a better nicotine energy initially, whereas a non-smoker or gentle smoker ought to go for a decrease focus. Private desire additionally performs a task; some customers want a powerful throat hit and intense nicotine rush, whereas others want a smoother, extra gradual supply. Deciding on a tool that permits for wattage adjustment may help customers fine-tune the nicotine supply to their particular person tolerance and desire.

  • Coil Resistance and Nicotine Absorption

    Coil resistance impacts the speed of nicotine absorption. Larger resistance coils, sometimes present in pod techniques, produce much less vapor however ship nicotine extra effectively. Decrease resistance coils, generally utilized in sub-ohm units, produce extra vapor however might require greater nicotine concentrations to realize the identical stage of satisfaction. The interaction between coil resistance and nicotine energy must be thought of when choosing a tool. Utilizing a high-resistance coil with a low nicotine energy might end in an unsatisfying expertise, whereas utilizing a low-resistance coil with a excessive nicotine energy may be overwhelming.

  • Potential for Nicotine Overdose

    The potential for nicotine overdose, whereas uncommon, is a severe consideration. Utilizing an inappropriately excessive nicotine energy in a strong system can result in signs comparable to nausea, dizziness, headache, and speedy heartbeat. It’s important to begin with a low nicotine energy and steadily improve it till the specified stage of satisfaction is achieved. Cautious monitoring of nicotine consumption and consciousness of the signs of nicotine overdose are essential for secure vaping. Deciding on a tool with adjustable wattage permits for exact management over nicotine supply, minimizing the chance of overconsumption.

The connection between nicotine energy and system choice is plain when aiming for an optimum vaping expertise. The “finest vape for nic salts” will not be solely decided by system options, but in addition by the suitable pairing with nicotine focus, particular person tolerance, and vaping preferences. Understanding these interdependencies permits customers to make knowledgeable choices, guaranteeing a secure, pleasant, and efficient nicotine supply.

Continuously Requested Questions

The next questions and solutions deal with frequent issues relating to units particularly designed to be used with nicotine salt e-liquids. The data offered goals to make clear key concerns and promote knowledgeable decision-making.

Query 1: What distinguishes a tool fitted to nicotine salts from one meant for freebase nicotine?

Gadgets optimized for nicotine salts sometimes function greater resistance coils and decrease wattage output. This configuration delivers nicotine extra effectively, stopping harshness typically related to greater nicotine concentrations. Gadgets meant for freebase nicotine sometimes make the most of sub-ohm coils and better wattage, producing considerably extra vapor and requiring decrease nicotine concentrations.

Query 2: Is it permissible to make use of nicotine salt e-liquids in any vaping system?

Whereas technically attainable, it’s usually inadvisable to make use of nicotine salt e-liquids in units designed for sub-ohm vaping. The excessive energy output and enormous vapor manufacturing can result in an amazing and doubtlessly disagreeable nicotine supply. Gadgets particularly designed for nicotine salts present a extra managed and satisfying expertise.

Query 3: What coil resistance is really helpful for nicotine salt e-liquids?

A coil resistance above 1.0 ohm is usually really helpful for nicotine salt e-liquids. This greater resistance permits for environment friendly vaporization at decrease wattages, minimizing harshness and maximizing taste. Sub-ohm coils are usually not appropriate for nicotine salts resulting from their excessive vapor manufacturing and potential for nicotine overdose.

Query 4: Does airflow management affect the suitability of a tool for nicotine salts?

Airflow management considerably impacts the person expertise. Gadgets with adjustable airflow enable customers to fine-tune the vapor density and taste depth, optimizing the expertise for his or her preferences. A tighter draw is mostly most well-liked for nicotine salts, because it concentrates the flavour and will increase the throat hit.

Query 5: How does battery capability relate to the suitability of a tool for nicotine salt e-liquids?

Battery capability determines the period of use between fees. Gadgets with smaller batteries might require extra frequent charging, whereas units with bigger batteries supply higher autonomy. The required battery capability is dependent upon particular person vaping habits and frequency of use.

Query 6: What position does leak resistance play in choosing a tool for nicotine salts?

Leak resistance is a vital issue. Gadgets vulnerable to leaking create a messy and inconvenient expertise. Gadgets engineered with sturdy sealing mechanisms and exact manufacturing tolerances supply higher leak resistance, selling a cleaner and extra pleasant vaping expertise.

In abstract, the optimum system for nicotine salts is characterised by greater resistance coils, decrease wattage output, adjustable airflow, sufficient battery capability, and efficient leak resistance. Consideration of those components contributes to a secure, satisfying, and handy vaping expertise.

The dialogue will now transition to concerns relating to system upkeep and troubleshooting for optimum efficiency.

Upkeep and Troubleshooting Ideas

Sustaining units and addressing frequent points are important for optimum efficiency when using nicotine salt e-liquids. Adherence to those ideas can delay system lifespan and guarantee a constant vaping expertise.

Tip 1: Common Coil Alternative: Coils degrade over time, impacting taste and vapor manufacturing. Substitute coils in response to producer suggestions or when a lower in efficiency is noticed. Ignoring this may result in a burnt style and lowered nicotine supply.

Tip 2: Constant Cleansing: Commonly clear the system’s pod or tank to take away e-liquid residue. Use a cotton swab or a small brush to scrub contact factors and airflow channels. Neglecting this contributes to efficiency degradation and potential malfunctions.

Tip 3: Correct E-liquid Storage: Retailer e-liquids in a cool, darkish place to forestall degradation. Publicity to warmth and lightweight can alter the flavour and nicotine focus. Compromised e-liquid will negatively have an effect on the vaping expertise.

Tip 4: Battery Care: Comply with producer pointers for charging the system. Keep away from overcharging or utilizing incompatible chargers, as this may harm the battery and cut back its lifespan. Broken batteries pose a security danger.

Tip 5: Handle Leaks Promptly: Examine and resolve any cases of e-liquid leakage instantly. Leaks can harm the system’s inner parts and create a messy vaping expertise. Examine seals and connections for put on or harm.

Tip 6: Firmware Updates (if relevant): For units with superior options, make sure the firmware is up-to-date. Firmware updates typically embrace efficiency enhancements and bug fixes. Outdated firmware might compromise system performance.

Tip 7: Correct Priming: When putting in a brand new coil, saturate the wicking materials with e-liquid earlier than use. This prevents dry hits and extends coil lifespan. Failure to prime correctly will end in quick coil harm.

Constant adherence to those upkeep and troubleshooting ideas will contribute to a chronic system lifespan, optimized efficiency, and a constantly pleasant vaping expertise with nicotine salt e-liquids.

The following part will present a abstract of key findings and concluding remarks.

Conclusion

The previous evaluation elucidates the components figuring out the optimum system for nicotine salt e-liquids. Choice necessitates cautious consideration of coil resistance, wattage output, airflow management, battery capability, leak resistance, refill methodology, and nicotine energy compatibility. The interaction of those variables dictates the protection, effectivity, and satisfaction derived from nicotine salt vaporization. Pod techniques typically current an acceptable place to begin, although customization by way of adjustable units might additional refine the expertise primarily based on particular person preferences.

Finally, knowledgeable decision-making relating to system choice and upkeep stays paramount for people using nicotine salt e-liquids. Prioritizing security, person expertise, and an intensive understanding of system mechanics will contribute to a accountable and doubtlessly extra useful vaping expertise. Steady analysis and improvement in vaporizer expertise promise future developments, warranting ongoing analysis of obtainable units and methodologies to make sure finest practices in nicotine salt vaporization.