Using a pre-filled cartridge with a vaporization device is popular for its convenience, but many users experience an immediate, involuntary coughing reflex. This reaction is the body’s natural defense mechanism against foreign substances entering the respiratory system. Understanding the biological reasons behind this harshness and adjusting both technique and device settings can significantly reduce the likelihood of coughing.
The Physiological Reasons Vapor Causes Coughing
The cough reflex is initiated when nerve endings in the larynx, trachea, and larger airways detect mechanical or chemical irritants. These sensory nerves are highly responsive to foreign matter that does not resemble the air we normally breathe.
Chemical irritation is a significant factor. The components in the aerosol, such as concentrated oils, can activate specific receptor proteins, notably the TRPA1 channels, on the surface of sensory nerve endings. This activation signals the body that an irritant is present, immediately prompting the forceful expulsion of air known as a cough.
The high density and viscosity of the vapor also play a role in this reaction. Vapor that is too thick, often due to high concentrations, can feel like a foreign, viscous substance in the airways, triggering the body to clear it. Furthermore, the temperature difference between the warm inhaled vapor and the ambient temperature of the airways can contribute to a “temperature shock” that further stimulates the tracheal nerve endings.
Optimizing Inhalation Technique
Instead of taking a long, deep pull directly into the lungs, users should practice taking slow, steady, and shorter draws. This reduces the volume and concentration of vapor hitting the sensitive tissues of the trachea.
A highly recommended method is the “mouth-to-lung” (MTL) technique. First, draw the vapor into your mouth and hold it there briefly, allowing it to cool and partially condense. This acts as a primer, preparing the airway for the substance and reducing the initial harshness.
The MTL technique involves inhaling that vapor into the lungs, but immediately following it with a small breath of clean air. This clean air chase helps to push the vapor fully past the throat and into the alveoli, preventing the concentrated aerosol from lingering and irritating the sensitive upper airways.
Maintaining good hydration and posture are also supportive measures. Drinking water keeps the mucous membranes in the throat moist and less susceptible to irritation. Sitting or standing upright while inhaling ensures the respiratory passages are fully open, allowing for a smoother, less restricted flow of vapor.
How Device Settings and Material Quality Impact Smoothness
The vaporization device’s settings are a significant determinant of vapor harshness, primarily through temperature control. Higher voltage or wattage settings cause the heating element to get hotter, which produces a warmer, denser vapor. This hotter aerosol is far more irritating to the respiratory tract.
Users should operate their device at the lowest effective voltage setting, typically in the range of 2.0 to 2.8 volts, to produce a cooler, less aggressive vapor. Airflow control also affects the vapor’s smoothness, as devices with a tighter, more restricted draw are generally better suited for the smoother MTL technique. More open airflow settings are often necessary for the higher-power direct-to-lung method, which carries a greater risk of coughing for beginners.
The quality and formulation of the cartridge oil also contribute to the overall smoothness. Highly concentrated oils, especially those with high levels of certain compounds, can be inherently harsher and more chemically irritating. Furthermore, the presence of various carrier liquids or cutting agents in lower-quality products can act as a stronger chemical irritant in the airways. Choosing products with high-quality, pure ingredients and avoiding excessive nicotine concentrations can provide a fundamentally cleaner and more comfortable experience.