Home goods follow standard size bands that make shopping easier once you know them. Pillows come in standard, queen, and king lengths that match the bed. Curtains follow panel widths and drop lengths. Air purifiers are rated by the square footage they can turn over every hour. The ranges below translate product specs into rooms and bed sizes so you can walk into the full roundup already knowing which band applies to your space.

Standard size classifications

Small (bedroom or studio)

Spec range: Air purifiers rated up to 200 sq ft, pillows standard 20 by 26 inch, curtains 52 inch panels up to 84 inch drop

Fits studio apartments, smaller bedrooms, and guest rooms.

Medium (main living room)

Spec range: Air purifiers rated 200 to 400 sq ft, pillows queen 20 by 30 inch, curtains 52 to 63 inch panels up to 96 inch drop

Works in primary bedrooms, family rooms, and most dining spaces.

Large (open plan or great room)

Spec range: Air purifiers rated 400 sq ft and above, pillows king 20 by 36 inch, curtains 72 inch plus panels up to 108 inch drop

Sized for open plan living, oversized master suites, and tall windows.

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Frequently Asked Questions

How big a purifier do I need?

Match the rated square footage to the room. For heavy allergies, size up one band to speed up air turnover.

Standard or king pillows for a queen bed?

Two standard pillows fit a queen bed side by side. King pillows work on king and California king beds.

Do curtains need to touch the floor?

Floor length curtains look more formal. A half inch gap above the floor prevents wear from foot traffic.

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