Theres absolutely no way that she just rinsed that filter under the water either and it came out that clean.
I wash mine with really hot soapy water and it never comes out looking like that.
I'll bet that's a spare filter, because even general dust causes the filters to stain slightly
I wash mine with really hot soapy water and it never comes out looking like that.
I'll bet that's a spare filter, because even general dust causes the filters to stain slightly