trying to use a fresh air system in a WFH room without letting street noise in

i work from home in a small bedroom office facing a loud street.

keeping the window closed is basically non negotiable during calls. if i crack it open, everyone gets traffic noise, leaf blowers, random shouting, all of it. so i just kept the room sealed and figured the air purifier was enough.

it helps with dust, but it doesnt make the room feel any less stale. by late afternoon the room feels heavy, and i start getting that weird tired feeling even if i slept fine.

window fan was not really better. it just pulled in more noise and pollen. opening the window between calls helps for a few minutes, but then i forget and end up back in the same sealed box.

this is what got me looking into a Fresh Air System instead of just another purifier. i came across cozeware because it sits in the window and brings in filtered outside air without drilling. still waiting on more info since it looks like it is going to be on Kickstarter, but the idea makes sense for a rental.

has anyone found a decent way to get fresh air into a WFH room without turning every meeting into street noise?

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u/MiladHusaain — 11 hours ago

I stopped buying Costco water cases, but the replacement has its own chores

i finally admitted the Costco bottled water routine was not as cheap as it looked. the price per case never felt bad, but the part i kept ignoring was everything around it: loading 40-packs into the cart, into the trunk, up three flights, finding somewhere to stack them without turning my kitchen into a warehouse. and then the recycling bin would be full of crushed plastic again.

tried a pitcher first. too slow, always empty, and my tap water tastes like pool water anyway. under-sink RO would be the grown-up answer but i rent, my lease is strict about plumbing, and the cabinet under my sink is already a disaster.

so i ended up getting this Aigerri countertop RO since it doesn't connect to anything, just plugs in and fills from a tank. the good part is obvious: no more cases of plastic bottles. the less glamorous part is that the chore just moved from the Costco parking lot to my counter.

counter space is the first thing. the lid needs more room than my upper cabinets allow, so i'm pulling it forward every time. the 5L tank is manual, and the 2L clean tank goes faster than you'd expect with two people drinking coffee all day.

filter cost is real too. the rated numbers look good on paper but actual life depends on your water.

so it's not magic, not zero waste, not free water forever. but compared with hauling case after case of bottled water every week, it's been a much less annoying routine.

for anyone who replaced bottled water with countertop RO, did the math still hold up after six months? curious how the filter life works out long term.

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u/MiladHusaain — 12 hours ago

my landlord made drinking water feel like a lease violation

i moved into an older apartment and the tap water tastes like a YMCA pool with pennies in it. not "oh it's a little off" bad. i make coffee and it still tastes like the building's pipes.

first thought was under-sink filter, then i read the lease. my landlord's version of "anything involving plumbing needs written approval" basically means "give us a reason to keep your deposit." cabinet under the sink is already a disaster anyway.

tried a pitcher. hated it. too slow, always empty, still tasted like old pipes. bottled water meant hauling cases up three flights like i was training for something.

so i got this countertop RO thing from Aigerri, just plugs in and fills from the tap. of course it created its own annoyance. my counter is tiny and now i'm doing this water machine shuffle every day because the lid needs more room than my upper cabinets allow.

inspection's next month and i'm wondering if management's going to care about a countertop appliance that doesn't connect to anything. do landlords actually notice this stuff

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u/MiladHusaain — 12 hours ago

We designed a fresh air system because we didn’t want our newborn sleeping in stale air

When we started this project, the original idea was just to make a better air purifier. We had a newborn, lived in an apartment, and keeping the windows closed all night made the bedroom feel like a tomb. I would wake up with a dry throat and total brain fog.

bought a CO2 monitor and realized levels were hitting 2000+ ppm overnight. No matter how many HEPA filters we ran, the air just felt stale. That brought us to our first decision point. Could we just build a smarter purifier?

quickly killed that idea. A standalone purifier only recycles the same stale air. It catches dust and PM2.5, but it physically cannot lower CO2 or bring in oxygen. next thought was, why not just go for a traditional ERV/HRV system?

The logic is solid there, but the execution is its own total nightmare. Traditional systems cost $1,000 to $3,000+, need professional installation, and mean drilling massive holes through exterior walls. If you're a renter or live in a high rise, the landlord will laugh you out of the building.

that left us with the final option, a window based fresh air system. No drilling required, installs in minutes. It actually pulls filtered outdoor air inside to dilute CO2, while running a HEPA filter for PM2.5.

After testing prototypes in our own place, we ended up with the Cozeware FreshFlow. It sits in the window track, seals completely shut so our cat can't push it out, and monitors CO2, VOCs, and PM2.5 automatically. We're launching it on Kickstarter soon because we figured other renters and parents are stuck in the same stale air trap we were. Figuring out the sizing for all the weird sliding window tracks is the thing we are still tweaking right now.

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u/MiladHusaain — 1 day ago

smooth at midnight, sandpaper by breakfast (actually rude)

shaved my legs last night. exfoliated, moisturized, went to bed smooth. woke up this morning, moved my legs and heard them scratching the sheets. under 12 hours of smooth is actually rude.

my hair grows so fast. if i shave twice in a row i get massive razor bumps. got so tired of wasting money on random skin acids people online told me to buy at 1am.

finally gave in and grabbed a ulike on sale. tbh i only got it over the other brands because it has that cold metal plate thing on the window and im very sensitive to pain and heat.

im 4 weeks in now. to be clear im absolutely not completely smooth yet. the light flash is also annoyingly bright in my room. the power cord is pretty clunky too when trying to reach the back of my thighs. but for someone who usually gets next-day scratchy legs, just being able to go a few days without shaving right now is huge for me.

if ur gonna buy one of these gadgets just wait for a sale so u dont pay full price. just glad im not fighting my own stubble every single morning anymore.

reddit.com
u/MiladHusaain — 1 day ago

My eyeglasses prescription has changed. Previously, the cylinder power was -1.00 in both eyes, but now it is -0.75 in both eyes. Someone explain

u/MiladHusaain — 15 days ago

Quick refresher on OSHA 1910.145 — are your danger/caution signs actually compliant?

Hey r/SafetyProfessionals

Doing a sign + tag audit at one of our facilities this quarter and figured I'd share a refresher I've been using with my team. OSHA 1910.145 is one of those standards that *seems* simple until you actually walk the floor and realize half the signs are faded, the wrong color, or using the wrong signal word for the actual hazard level.

Quick recap of what 1910.145 actually requires:

- **Danger signs** → immediate hazards, risk of death or serious injury. Red/black/white, no design variation allowed.
- **Caution signs** → potential hazards or unsafe practices. Yellow predominant, black panel.
- **Safety instruction signs** → general safety guidance (white background, green panel).
- **Accident prevention tags** → temporary hazards (out-of-service equipment, biohazards, etc.).
- Signs must have **rounded/blunt corners**, no sharp edges, and employees must be **trained on what each classification means** — not just told to "watch for signs."

The standard also pairs with **ANSI Z535** (last updated 2017), which most modern signage follows for pictograms, signal words, and layout. Replacing legacy ANSI signs is technically voluntary, but mixing old and new formats on the same floor confuses workers fast.

Common gaps I keep finding during walk-throughs:

  1. "Caution" signs being used where "Danger" is warranted (or vice versa).
  2. Faded/illegible signs that technically exist but functionally don't.
  3. No documented training tying sign meanings into the hazcom program.
  4. Temporary tags left up long after the hazard is gone — kills credibility with workers.

Full breakdown with classifications, color specs, and tag requirements here if anyone wants the deep dive: [OSHA Warning Signs](https://resources.duralabel.com/articles/osha-1910-145-warning-signs-and-tags)

**Curious how the rest of you handle this:**
- Do you run a periodic signage audit, or is it reactive when something fades/falls off?
- Anyone fully transitioned to the updated ANSI Z535 format, or still running a mix?
- What's the weirdest 1910.145 citation you've seen (or barely avoided)?

u/MiladHusaain — 16 days ago