I second this. I use r13 HEPA filters that only need to be changed every
3 to 6 months at a minimum with a fan running non-stop. It's a nuisance
to have reminders monthly. If only I could set them to remind me at a
certain date and time would this fe...
I am an asthmatic and have severe allergies and it's important for the
fan to continuously run with the HEPA filter Merv 13 plus carbon to keep
air clean 24 hours a day. Where can I switch for the fan to run
continuously?