Hey nostr:npub1lrjgpa9m2dl6esdah5pq7m005ymwh4glq4aet76q2zlz2f83esfsa2zvrj

Did you ever think of adding another section at the bottom of your bitcoin space heater to include an off-the-shelf hepa filter? It could purify the air and reduce dust accumulation in the S9 miner.