I’m a carer, I visited a 91 year old lady today to assist with her feet. I’ve seen her a few times and she has hinted that she needs help with cleaning. Today I said I had a spare hour. She showed me her wet room and was in tears. She has family coming to stay in a couple of weeks and is so embarrassed by the state of her bathroom. I said not to worry I will get it right, but won’t get it all done today. The flooring in the shower area was covered in slimy black stuff, she had a Cif spray and with little scrubbing most of it came off and rinsed away. It was quite thick and covered a big area going from the floor upwards and was on the shower chair. I did what I could in the time I had and with what I had but I’m now wondering if it was something dangerous like black mould. It was easy enough mostly to remove, I’ve not come across anything like it before. It was all around the shower trap. It’s still on the glass doors. I said I’d come back in a few days when I have more time. I did wear gloves but not a mask. I’d like to know what exactly it was so I can take better precautions next time. I will buy supplies if needed. It’s not a huge area so I’m worried about fumes, I can open a small window. My worry is have I been wondering around all day covered in dangerous spores?