3 ms·

>but there's a perverse incentive here for the warning to undershoot the actual useful life of the filter Hypothetically, yes, there's a perverse incentive, bu

>but there's a perverse incentive here for the warning to undershoot the actual useful life of the filter Hypothetically, yes, there's a perverse incentive, but is that what is actually happening? A clogged filter can stress the fan motor which can A) increase power consumption and B)reduce overall product life.

typh00n 3y ago
And it is for the consumer to decide which path to take. Not the product itself.
- sofixa 3y ago
  Until the consumer complains that the air purifier isn't doing its job and thrashes the company online, and changes for a model from a competitors. Most consumers aren't really capable of this type of nuance.
  - ClumsyPilot 3y ago
    This sounds like a completely made up problem, I don’t think this ever happens. A clogged filter is obviously full of dust and grime, anyone who can use a vacuum cleaner can understand that
bonzini 3y ago
It's not unlikely. A while ago I had to deal with a laser printer that automatically reported the end of the drum's life after 15000 pages or so, even if there were no signs of stripes on the printed pages. The solution was to stick a 220 ohm resistor on the electric contacts between the drum and the rest of the printer. The printer would sense the resistor (which is present on genuine new drums too) as a signal to reset the page counter. Once the resistor gives a puff of smoke it can be removed, and the old drum can be used until its true end of life.
- j16sdiz 3y ago
  What does it take to burn a resistor? It sounds terrible to me. Guess it was hot all the time?
  - c_o_n_v_e_x 3y ago
    Depends on the wattage/power rating of the resistor
    - bonzini 3y ago
      It was a through-hole 1/4W resistor. It burnt in about 5 seconds as far as I remember.
alright2565 3y ago
> A clogged filter can stress the fan motor which can A) increase power consumption and B)reduce overall product life. you got it completely backwards, unless you have a very fancy and expensive ECM motor. Increasing resistance decreases power draw, as the fan needs to do less work. You can test this by hooking up a vaccum cleaner to a killawatt and blocking the intake. There may be concerns about cooling the motor, but it really doesn't take that much air movement to dissipate heat.

typh00n 3y ago

And it is for the consumer to decide which path to take. Not the product itself.

sofixa 3y ago
Until the consumer complains that the air purifier isn't doing its job and thrashes the company online, and changes for a model from a competitors. Most consumers aren't really capable of this type of nuance.
- ClumsyPilot 3y ago
  This sounds like a completely made up problem, I don’t think this ever happens. A clogged filter is obviously full of dust and grime, anyone who can use a vacuum cleaner can understand that

bonzini 3y ago

It's not unlikely. A while ago I had to deal with a laser printer that automatically reported the end of the drum's life after 15000 pages or so, even if there were no signs of stripes on the printed pages. The solution was to stick a 220 ohm resistor on the electric contacts between the drum and the rest of the printer. The printer would sense the resistor (which is present on genuine new drums too) as a signal to reset the page counter. Once the resistor gives a puff of smoke it can be removed, and the old drum can be used until its true end of life.

j16sdiz 3y ago
What does it take to burn a resistor? It sounds terrible to me. Guess it was hot all the time?
- c_o_n_v_e_x 3y ago
  Depends on the wattage/power rating of the resistor
  - bonzini 3y ago
    It was a through-hole 1/4W resistor. It burnt in about 5 seconds as far as I remember.

alright2565 3y ago

> A clogged filter can stress the fan motor which can A) increase power consumption and B)reduce overall product life. you got it completely backwards, unless you have a very fancy and expensive ECM motor. Increasing resistance decreases power draw, as the fan needs to do less work. You can test this by hooking up a vaccum cleaner to a killawatt and blocking the intake. There may be concerns about cooling the motor, but it really doesn't take that much air movement to dissipate heat.