Generally, the scent from home fragrance products is unlikely to clog your forced air system. However, there are some considerations to keep in mind to ensure that your HVAC system continues to function efficiently. Home fragrance products, whether they come from diffusers, candles, sprays, or essential oils, release scent particles into the air. These particles are typically very small and light, allowing them to disperse throughout a room. In most cases, they are not substantial enough to clog your HVAC system’s ducts or vents. The main interaction between your HVAC system and home fragrance products occurs at the air filter. Air filters are designed to capture dust, pollen, and other airborne particles to prevent them from entering the system’s internal components. Scent particles from home fragrances are generally too small to be captured by standard filters, so they pass through without causing blockages. However, if you frequently use fragrance products, particularly those that release oils or larger particles (like certain aerosols), the air filter could become saturated more quickly. This may reduce the filter’s effectiveness and potentially lead to a buildup of particles that could restrict airflow over time. For essential oil diffusers, especially those that disperse fine mist or steam, the oils are typically diluted enough that they don’t pose a risk of clogging the HVAC system. However, it's best to keep the diffuser away from intake vents to avoid drawing more concentrated particles into the system, which could reduce its efficiency. By following these guidelines, you can safely use home fragrance products without significantly impacting your HVAC system’s performance.