The following information is the noise information based on decibels

For this model:

When the pump is running: High speed: 58.5 dB, Medium Speed: 55.7 dB, Low Speed: 52.0 dB

When pump is not running: High: 58.0 dB, Medium: 55.2 dB, Low: 52.0 dB

You can have a conversation when the noise level is below than 60 dB. Ideally you would rather have 0dB of noise for a peace of mind while in your conversation.

Hope this answers your question.

BDH-550 can be set timer up to 24 hours each time. Thus, you will need to set up each different or the same time line. Hope this helps.

The unit stops when it reaches the set humidity level you select. It's not an air purifier. If you're looking for an air purifier, Honeywell makes a great one.

I find it quite noisy. I beleive it would disturb a bird.

I am using it in a 1600 sq ft basement and it is working well.

go on line at homedepot.ca, click on appliances, then look for dehummidfiers,click on it,
page pops up,there is several models, check out Royal souverigns buckletless model BDH450 OR 550, I purshased the BDH 550 myself & I am very satisfied with it, it works really good so far,
the 450 model is also very good it has an energy star rating. the best part is, not having to empty the bucket, drains it self automatically just make sure the hose is secure to a drain or laundry tub, chk filter once a month, thats it done walk away

MAKE SURE YOU FOLLOW INSTRUTIONS , also register your product on line with Royal Sovereign

good luck