Occupational safety

I'm looking for an emergency solution to a faulty, constantly humming ventilation system in the neighbourhood, which simply won't be repaired despite my knowledge of the inconvenience to the residents. It's been humming every day from morning until night for weeks and I'm supposed to be on holiday soon, but I can't use my terrace at all (= no holiday) and can't even tilt the windows in my flat. Requirements for noise protection: - Hum must be gone (I hope it's only acoustic, not also vibration, then nothing helps) - All other noises must be fully perceptible (e.g. pet activities, events in the flat) - It must under no circumstances be a nuisance, neither fall out of the ears nor cause pressure/sucking or even pain in the ear - it must not be there, so to speak - It must not increase heat stress (summer!) What fulfils the requirements - apart from the right one? Repairing the ventilation?

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I am in possession of 2.5 kg fire extinguishers for our camper, what can I do when the expiry date is up. Disposal or refresh and could I do something like that. Thanks for your help. Greetings Ma.Ko

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If the filter would at least indicate the selection men / women , or widths (narrow, normal, wide). A good fit is especially important for safety shoes. I (female, engineer) don't feel like ordering dozens of pairs of men's shoes until I find a suitable S3 pair by chance.

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This does not only apply to this range. I would find it extremely helpful and actually indispensable to indicate the country of manufacture in the specifications.

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As an autistic person, I'm looking for more quiet, especially on public transport. My Sony MX5s are "for nothing", they hardly insulate at all, NC doesn't keep up with anything spontaneous (children shouting and loud announcements), or it sometimes seems even louder due to the shielding of other ambient noise. Now I've come across the X5A at 3M, which are supposed to shield 37 db? The most important thing for me would be to shield the high tones.

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