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What do you actually run in Delhi when outdoor AQI sits above 300 for weeks?

A box fan with four MERV 13 filters in a cube gets you into the same ballpark as a lot of retail units. Estimates from a university test put that design somewhere around 165 to 240 CFM of clean air delivery, against about 111 for a single filter taped to the same fan. It is loud and it is ugly and it is a fraction of the price, and in a season where you may want a second one in a hurry that is worth knowing.

213 · in/indoor-air-quality ·

GBP 500 all in for a first proper camera: used body or new entry-level kit?

One warning about the popular compacts in this conversation: a certain retro rangefinder-styled model is still going for well above list in a lot of places, and the list price itself went up to around eighteen hundred dollars in the US from its original launch price. It is a lovely camera and it is nowhere near your budget, so do not let a shortage of it distort what you think cameras cost.

112 · in/photo-gear ·

one $19 customer emails me four times a day and i have answered every one for six weeks

Batch it, and tell them you are batching it. Most heavy emailers are not demanding, they are using your inbox as a thinking tool, and when you answer within four minutes at 11pm you have taught them that is the service. They will happily adjust to a daily rhythm because they were never asking for instant, they just got it.

The change is one sentence in a reply, not a confrontation.

71 · in/support-inbox ·

the edge runtime does not support Node.js crypto module, only in middleware

If you use Auth.js, this is exactly what the split config exists for: an auth.config.ts with providers and callbacks but no adapter, imported by middleware, and the full auth.ts with the database adapter imported everywhere else. The adapter is what drags a Node-only driver into the edge bundle. Took me an embarrassingly long time to notice the docs had already solved my problem.

47 · in/cold-starts ·

Are air purifiers a waste of money if you already vacuum twice a week?

Not a waste, but the value is mostly invisible and that makes it hard to feel good about. If you want a cheap test before spending GBP 250, tape a MERV 13 furnace filter to a box fan for a weekend and see if anyone in the house notices anything. Published chamber testing puts that crude single-filter version around 111 CFM of clean air delivery, which is genuinely low but not zero, and it costs about the price of a takeaway.

43 · in/indoor-air-quality ·