Does Closing the Windows Starve Us of Oxygen?

ओह! यह पोस्ट हिन्दी में उपलब्ध नही हैं।अंग्रेजी संस्करण के हेतु यहाँ क्लिक करे l

The Sqair air purifier Kickstarter

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Stephan

How about with plants in the room does it harm us to sleep with plants in the room?
Thanks

vishal

I was also having the same doubt about purchasing new purifier for my room, but your blog helped me to select a purifier more specifically, so i purchased the same kind of purifier