Supplemental oxygen therapy often causes uncomfortable dryness in the lips and nasal passages due to the constant flow of gas. Many common lip products, including most traditional chapsticks, contain ingredients that pose a significant fire safety risk when combined with concentrated oxygen. Standard petroleum-based products are incompatible with oxygen delivery systems and must be avoided entirely. Choosing the correct water-based or specially formulated moisturizer is an important safety measure for anyone undergoing oxygen therapy.
Understanding the Combustion Risk
Concentrated oxygen, such as that delivered by a tank or concentrator, is not flammable itself, but it acts as a powerful accelerant that dramatically increases the risk of fire. When a source of fuel is present near the oxygen flow, the pure gas lowers the temperature needed for ignition and increases the speed and intensity of combustion. This effect makes the use of certain moisturizers dangerous when on oxygen therapy.
The primary danger comes from products containing hydrocarbons, which serve as the fuel source. This includes petroleum jelly, mineral oil, and other heavy greases. These oil-based substances are derived from petroleum and can easily ignite from a minor spark, static electricity, or even friction when saturated with oxygen.
The highly combustible nature of these ingredients is intensified because they can trap oxygen molecules near the skin or within the fabric of clothing. When an ignition source is introduced, the fire can spread rapidly, appearing almost explosive. For this reason, safety guidelines advise against using any petroleum-based creams or ointments on the face or hands while using oxygen.
Recommended Safe Moisturizers
The safest products to use for dry lips and nasal passages while on oxygen therapy are those that are explicitly water-based or formulated without oil or petroleum derivatives. Water-based gels and lotions provide the necessary moisture without the combustible fuel source. A product is considered water-based if water is listed as the first ingredient on the label.
Specific alternatives include water-based nasal gels or lubricants, such as KY Jelly or Aquagel, which can be applied to the lips and inside the nose. Some lip balms that use beeswax, cocoa butter, or coconut oil may be acceptable, but users must confirm the product is completely petroleum-free. Even natural oils should be used sparingly, as all hydrocarbons are technically fuels.
A few companies offer products marketed specifically as “oxygen safe” lip care, formulated to avoid all flammable materials. When selecting any product, check the ingredient list for terms like petrolatum, mineral oil, or paraffin, as these indicate a petroleum base that must be avoided. Opting for a product designed for sensitive skin, free from fragrances and irritants, is also beneficial for the delicate skin often affected by oxygen use.
Minimizing Dryness and Safe Application Practices
Addressing the underlying cause of dryness can reduce the overall need for lip and nasal moisturizers. A primary strategy is using a humidifier bottle attached to the oxygen source, which adds moisture to the gas before it reaches the nasal passages. This simple addition helps mitigate the drying effect of the continuous oxygen flow.
For the nasal passages, saline nasal sprays or gels are highly recommended. They safely moisturize the delicate inner lining of the nose and help prevent irritation and crusting caused by contact with the cannula prongs.
When applying any safe, water-based product, use a minimal amount and rub it in thoroughly to avoid excess residue. Always wash your hands before handling oxygen equipment or applying the moisturizer to prevent the transfer of hazardous residues. Care should be taken to keep all moisturizers away from the oxygen tubing, regulators, and connectors to maintain the integrity of the delivery system.