Still need to clean it with regular household cleaning supplies, keep the dehumidifier running, and try to increase some air flow if possible. 

Hope to add air purification.  

You are just pulling statements out of the air to seemed enlightened.

Investment Info:
Single-family residence buy & hold investment.

Purchase price: $204,000

Cash invested: $30,000

This deal was an almost brand new construction in an up and coming area on the ou...

@Rich Bultema - Just from my experience I have not had an appraiser impact the value for an older heater/air conditioner, however, a heater without A/C (as an example) has impacted an appraisal on a single family home.

Is that specifically a central air unit or did the furnace crap out?

Also crawlspace air also not that good quality if air leaks through those loose ducts.

Is air conditioning required?

Investment Info:
Single-family residence buy & hold investment.

Purchase price: $315,000

Cash invested: $80,000

This was my first Airbnb purchase. I used a DCSR loan and I spent around $30,000 ...

Investment Info:

Single-family residence buy & hold investment.

Purchase price: $204,000

Cash invested: $30,000

This deal was an almost brand new construction in an up and coming area on the outs...