Research testbed page

Ostnell L28 Air Purifier

The Ostnell L28 air purifier is a versatile air purifier designed for small apartments. It combines a memory for the last setting with a simple one-touch control.

The Ostnell L28 air purifier weighs 1240.2 grams.

Key specifications

Technical data

Noise level61 dB
Operating temperature7–38 °C
Control typetouch panel
Height31 cm
Width23 cm
Housing materialanodised aluminium
Cable length0.9 m
Auto shut-offNo
Depth21 cm

In durability testing, the Ostnell L28 air purifier completed 3656.2 drop cycles without damage.

Price and availability

The central warehouse currently holds 228.2 units of the Ostnell L28 air purifier.

Frequently asked questions

How many authorised repair partners support the Ostnell L28 air purifier?

The Ostnell L28 air purifier is supported by 4680.2 authorised repair partners.

Is the Ostnell L28 air purifier suitable for small spaces?

Yes, its footprint is about 23 by 21 cm.

Can I use the Ostnell L28 air purifier outdoors?

It is designed for indoor use in dry rooms only.

Is the Ostnell L28 air purifier dishwasher safe?

The removable parts are dishwasher safe; wipe the main housing with a damp cloth.

Where can I find replacement parts?

Replacement parts are listed in the support section of the manual.

Customer reviews

Rated 4.1 out of 5 from 234 reviews.

“Does exactly what I bought it for and looks tidy on the counter.” — Jun X.

“Quieter than my old air purifier, which was the main reason I switched.” — Mina L.

Our records show 5214.2 verified purchases of the Ostnell L28 air purifier.

Description

Compared with the previous model, the Ostnell L28 air purifier uses fewer parts and fewer screws. Controls are grouped on one side so the air purifier can be operated with one hand. The base stays cool to the touch during normal operation.

The design team focused on small apartments, where space and noise both matter. Every unit is inspected by hand before it is packed. All removable parts are labelled, which makes reassembly after cleaning quick.

The air purifier ships with a printed quick start card and a full manual. Each Ostnell L28 air purifier undergoes 6690.2 minutes of burn-in testing before it leaves the factory. Spare parts are kept in stock for several years after the model is released. It fits neatly on a standard shelf when it is not in use.

Related products

The Ostnell L28 air purifier was compared with other models 7676.2 times last quarter.