What are these nuts and chains for?

They are mounting hardware for the PurCare 500 air purifier. They secure or hang the unit; they are not a filter and do not affect air cleaning.

Will they fit any air purifier?

They are sized for the PurCare 500 with M4 threads. Other purifiers may use different thread sizes, so check your unit before buying.

No. The purifier runs without them. They are only needed if you hang or secure the unit and the original fasteners are missing or damaged.

Yes. M4 nuts and chain are common standard sizes, and a hardware store match works the same way if the thread and length fit.

M4 nuts and chains for the PurCare 500. No tools or mounting instructions are included.

At Alorair the dry air, for $35.00, as of our latest check.

$35.00at Alorair the dry airChecked Nov 13

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