What are the disadvantages of an air purifier?
An air purifier is great for improving indoor air quailty. However, there are some disadvantages to them.
Health and safety
HEPA vs true HEPA: What’s the difference (application, durability, costs, efficiency)
Filters are either HEPA (High-Efficiency Particulate Air) or they are not.
Is it safe to sleep with the air purifier on? (+ where to place it)
Sleep mode is your best option during the night. Make sure your purifier is placed safely.
Do air purifiers reduce oxygen? (how to make sure you have enough oxygen)
Air purifiers do not reduce oxygen in the air.