Mini-split air conditioner doesn't purify the air

Q: I have a four-car garage where I’d like to provide a cooling system because I use part of it as a woodworking area. Would it work if I installed one of those mini-split air conditioner units?

A: You can do that, but you’ll have to clean the filter out every day after using it for woodworking. That’s because mini-split systems don’t pick up the dust and purify the air in the way that conventional air conditioners do. People who have a lot of problems with allergies might also have more difficulty with mini-splits than with a regular air conditioning system.

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