Air Formaldehyde (HCHO) DIY Test Kit - Used for Air Quality Testing, Detector Used for Home, Residential, Business, Hotel, Hospital, School, Furniture, Auto (Pack of 1)

easy to use

The color instructions in the manual are not particularly clear.

Semplice da usare. Volevo sapere se avevo formaldeide in camera. Non saprei dire se é accurato, ma come prima analisi per me va bene.

I had upper bleph eye surgery overseas that required regular icing. Packed these in hand luggage & even shared a few with a fellow unprepared patient. Easy to ‘snap’ & immediate long lasting cold pack is created - in a cafe / train ride / airport lounge / plane etc numerous cold packs eased my recovery. Super simple to use, lightweight and absolute must for recovery. Recommended and have purchased more for my recover and son’s football kit

There are often some small insects in the house when I keep flowers, which is very annoying. With this ultrasonic insect repellent, the insects disappear instantly, making the house clean and tidy.