Each product has a unique model number.A model number usually starts with letters followed by series of numbers, e.g. GC6440, 37PFL7403D/10 or SA1300/02.
There are a few different ways you can locate your model number:
Look on the box
Look inside the product
Look on the product
Look on the manual
Healthy air, always
Anti-bacterial agent for safe & clean humidifiers
Anti-bacterial agent for your humidifier
Philips humidifer comes with an addition to the advanced humificiation filtering system: an anti-bacterial agent that prevents bacteria of growing inside the water tank. Add it to the water regularly to ensure your water tank is extra safe.