Idea for filtered air into the RV
Many people have MaxxAir/ Fantastic Fans. Along with the stock bathroom fan. Normally air must enter through the window drip vents and cracks at the door to replenish the air leaving the RV. You c...
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Just get a allergy filter for a home HVAC system, open one window, and tape the filter over it. Maxxir or fantastc fan will pull outside air through it.
