Same here! Best recommendation nostr:nprofile1qqsqfjg4mth7uwp307nng3z2em3ep2pxnljczzezg8j7dhf58ha7ejgpp4mhxue69uhkummn9ekx7mqprpmhxue69uhhqun9d45h2mfwwpexjmtpdshxuet5hgfg9w has ever given
One really wild eye-opener was putting it in a bedroom to measure the air quality in the morning. If there’s no window open in the room it can go up to like1800 or higher unless you have a whole house fan on.