Ed Sayce
351 posts

Ed Sayce
@edsayce
dad, life, engineering, science, stuff.
Streatham, London Katılım Temmuz 2010
304 Takip Edilen110 Takipçiler

@PeteUK7 @CathNoakes effectiveness of air mixing is key to minimise amount room of air not going through the unit.
Fundamentally floor mounted units will always struggle with furniture and other real world obstacles.
Ceiling mounted unit would be best placed to achieve this.
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@CathNoakes I prefer units w/ very high flow rate to promote better mixing & so over-specify ACH req'd to offset (to some extent) the imperfect mixing & gradual performance drop as filters age. But ofc if it was my choice, I'd be adding filtration to supplement FFP2s & good ventilation.
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What we need for commercial portable air cleaners is what:
CADR at each speed
Noise at each speed
Filter class
Standard they're tested to meet & certification
Other tech like electrostatic filters, plasma or ionizers
Cost for replacement filters
Power usage
Anything else?
Javier Ballester@JbcLiftec
@DavidCr33393110 @FLANOP @PeteUK7 @SmartAirFilters @DaddyDaragh @Brill_Brum @DrPieterPeach @Michael34301004 @backwards_boy @BenJonesIEQ @johnwenger9 @JimRosenthal4 @CorsIAQ @CathNoakes @jljcolorado @HuffmanLabDU @CIBSE @CIBSE_NatVent @kprather88 @DavidElfstrom Also, if I may, a suggestion for commercial units: they should provide CADR for all speed settings. Otherwise, they are being used at low speeds, with very low flow rate (and protection) in most cases. Here some data for (tested last January): drive.google.com/file/d/1ZpyIUb…
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@JTavassolyMarsh Looking very nice. No excuse for your short game now with a practice ground like that.
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@JTavassolyMarsh I picked up most of my latin from the film gladiator.
If you're interested @Polly_Mason studied it at the way to GCSE because she's that kinda girl.
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@JTavassolyMarsh That'll be the old age getting to you mate. Happy birthday V.
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Just a little celebration in the Moffat household this evening!
#ENGvSCO

Camberwell, London 🇬🇧 English

@shitbarrister Would this would spell the end of elevenses? Would it be replaced by another midmorning snack time?
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Right, basically I’m bored of saying eleven now. I’m going with onety-one. There’s nothing you can do. I’m 42 which means I’m an actual adult. Deal with it.
#NormaliseOnetyOne
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@GeogMarsh If they've spent too long looking (my personal judgement) I just 'accidentally' push my trolley into them or let the little one loose. That normally moves them on.
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