Labasics Qualitative Filter Paper Circles, 55 mm Diameter Cellulose Filter Paper with 15-20 Micron Particle Retention Medium Filtration Speed, Pack of 100

Not impressed at all. Appears to be just like a piece of notebook paper. Not sure I'm getting any ventilation at all

You will need tape of some sort to attach. These filters ARE NOT SELF ADHESIVE LIKE WHAT WE NEED GUYS. There are several other options that are just as cheap and SELF adhesive

The media could not be loaded.  Excellent product! Comes in a nice box with a large quantity of filters. Perfect for continuous airflow while simultaneously blocking out micro-contaminants.

I got this product for my pet water fountain, and it fits.

I use these filters for my perfumes.

Exactly what I was looking for as replacement filters in my Grandsons chemistry set. Perfect size and better quality than the originals. Highly recommend.

Una carta da filtro è un prodotto tecnico e le indicazioni sulla scatola devono essere riportate con certezza. Ogni laboratorio di trova con 20-30 pacchi di carta da filtro e ogni pacco riporta le caratteristiche. La più importante è la POROSITA' in Micron. Sul prodotto che ho acquistato non c'è. Questo complica la vita di chi lavora, perchè serve molta precisione.

Los filtros funcionan como era de prever, no absorben apenas solventes y tienen una gran resistenciaLo único que encuentro es que son un poquito caros, por lo que son, usando filtros de café se obtienen los mismos resultados, pero más barato, mucho más, aunque si es cierto que al venir ya cortados se simplifica todo mucho