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https://www.mdpi.com/2073-4433/13/5/800 A Review of Selected Types of Indoor Air Purifiers in Terms of Microbial Air Contamination Reduction Aims: With the ongoing pandemic and increased interest in measures to improve indoor air quality, various indoor air purifiers have become very popular and are... indoor air purifiers https://indoorairquality.initiative.uconn.edu/category/homemade-air-purifiers/ homemade air purifiers | UConn Indoor Air Quality Initiative | College of Engineering and UConn... college of engineeringair purifiersindoor qualityhomemadeuconn