Austin Air “it” Large Particle Pre-Filter

Large Particle Pre-Filter for the Austin Air "IT" Machine The Austin Air “it” Large Particle Pre-Filter is the replacement pre-filter for the Austin Air “it” personal air purifier. It is the first stage of filtration and captures larger airborne particles such as dust, hair and pet dander before they reach the Certified HEPA filter. This helps protect the HEPA filter and allows the Austin “it” to continue providing effective personal air purification. The Large Particle Pre-Filter can be replaced when it becomes heavily loaded with dust and other larger particles. Austin Air does not specify a fixed replacement interval for the pre-filter, so replacement frequency depends on the amount of particle buildup and usage. The pre-filter can also be upgraded to the VOC Carbon Wrap for additional filtration of VOCs, chemicals, gases and odors.