r/Mold

Son-Inlaw used while in on vacation. 3 weeks later I find this! Is this mold?

He is in a student dorm, so spends almost all his time here. This is in his bathroom.

Is this mold? Every winter our ceilings and down our exterior (one side is outside) walls we get these Gray/dark Gray blotches that get progressively worse. For 2 years we've had people come in to clean with bleach but next winter it's back.

This is a rental (Cape Town, South Africa) and I asked the agent. She said we must keep the house well ventilated but we already do.

Another thing I think of is important. We're in a very leafy neighborhood close to the coast and when we sweep our wooden floors there's always a pile of dust.

Everyone who's looked says it's mold but I'm not sure given the evidence I shared.

I would be much obliged for your help.

I’m currently on a long-term stay at a hotel, and these are photos of the A/C vent in my room.
📍Canada.

I know nobody can definitively confirm mold from photos alone, but I’m hoping to hear from people who have experience with mold, HVAC, remediation, building inspection, or similar work.

Based on what you’ve seen before, does this look like mold to you?

How confident are you based on the appearance alone, and what specifically stands out to you in the images that makes you think it is or isn’t mold?

Thank you😫.

Was looking to buy this game, but became skeptical after looking at the cover, there's so many white specs I have no idea what it is and the larger white spots near the face is throwing me off, could this be mold?

Just moved into my down and this is growing all over our floors, could anyone help us identify what type of mold this is and what precautions we should use.

Hello people of reddit, I am here to ask of some help. I recently have been discovering things in my apartment covered in mold, i’ve looked into it and found it is most likely caused from the humidity. I have been in touch with the owners of my building and they have brought a dehumidifier in. I am more worried about needing to switch units especially because the backpack with mold was underneath our bed, everyone I have talked to says we need to be moved and I have expressed that but they basically said here’s the dehumidifier we’ll see what happens. We had an issue with the AC a couple months ago to where it leaked twice and it was not a small leak. I wanted some advice on if it is bad enough to switch units considering it is mold and i have 2 cats as well or if the dehumidifier may actually help. Thank you! :)
(we always keep the air right below 70 AC on)

How cooked am I chat? What steps need to be taken? How dangerous is this? I live with my mom atm and she’s kinda delulu and drags her feet about doing anything about it.

Edit from bot advice: I live in southern Ohio. We seem to think that this mold is being caused by humidity from our AC unit that was installed last year. We had someone come out to come check it out bc it was dripping a lot faster than it seemed to. The guy came out and told use they were supposed to install something to like catch it but didn’t.

It seems to grow in the unfinished parts of the wood. This is under a 365UV light, and I’m worried about the yellow splotches.
Thank you!!!

Edited to add: this is in a library in the US. It has had high humidity and temperature for years. The cleaning crew says it’s not mold and they don’t want to clean it. I’m think it is mold and want real remediation. The actual local mold professional is… not responding?

Working in Medical Barrarks on Fort Sam Houston, and keep finding mold growing out of the subfloor. This building needs to be demolished asap..

It's been raining non stop for about 3 weeks and this thing appeared in my parent's house. Should I be concerned? What is it? I'm from South East Asia. Thank you for the help!

Since summer began, my place has been feeling damp. Like skin clammy. I’ve had the ac on always around 72°. I also have an aquatic tank so idk if the water filter is contributing to this issue but I lived here for like 6 years and this is a first. Today I looked at my couch and noticed some gray spots. I thought it was from something my kitten done but further investigation it’s on different parts of the couch and then I discovered the back of my white board. Immediately threw it away. My couch tho idk 😭

This past week, we decided to remove the carpet in the home we just bought and replace it with LVP. After removing the carpet and wall trim, this is what we found. I’m concerned that it’s mold and water damage. A month ago I got the carpets cleaned and the carpet was wet/damp for about six days. We have a dehumidifier running in the basement and a fan pointed towards this spot. I already painted the walls and they were clear, but the area under the trim is a little concerning. I just emailed the person that did our home inspection just to get some advice, but figured I could post here too. Do you think it’s mold and should we contact someone further? Should we open up the drywall? Thank you for any advice.

Just to add-we are located in northern VA.

Is this worth getting it tested or just clean it like I did the bedroom unit. I mean obviously I'm going to clean it, but if it's mold it needs more than me scrubbing it because that inside liner is Styrofoam. Us South

We used hydrogen peroxide and a scrub brush and this is what it looks like shortly after. Do I need to call a professional?