The Core 300S is the smaller machine; the Core 600S offers a higher stated clean-air delivery rate for larger spaces. Choose using the room's volume and the air-change basis, then check the exact regional appliance and filter before paying.
See the at-a-glance comparison above ↑
This is a document-based comparison, checked on 11 November 2026, rather than a hands-on performance test. Room areas are manufacturer ratings, not a promise of a particular result in your home. The hero is an editorial illustration.
Compare the same air-change basis
Levoit's UK Core 300S product page describes 100m² at one air change per hour and 50m² at two. Its UK Core 600S page describes 294m² at one and 147m² at two. Compare 50m² with 147m², rather than mixing a one-change figure with a two-change figure.
The linked Core 300S UK manual instead gives 54m² at two changes per hour and 258m³/h CADR. We retain the product-page areas together above to make their stated basis clear; the discrepancy means you should confirm the specification supplied with the actual unit. Neither headline area describes performance at a quiet overnight setting.
For a transparent planning calculation, room volume is floor area multiplied by ceiling height. At an illustrative 2.4m ceiling and four air changes per hour, 258m³/h corresponds to about 27m² and 697m³/h to about 73m². These are arithmetic scenarios using the cited ratings, not tested recommendations or guaranteed real-room performance. Doors, layout, fan speed and obstructions affect circulation.
Which machine fits your space?
The Core 300S takes less floor space and is 24cm shorter according to the linked UK manuals. It is the practical starting point where space is limited, provided its stated airflow fits your room and intended setting.
The Core 600S is the option to examine for a larger room or greater stated airflow. Its larger cabinet needs an appropriate position with the clearance required in the manual; a larger headline coverage figure does not establish whole-home circulation through closed doors.
Both cards are restricted to the reviewed manufacturer retailer and refer to complete machines, not replacement filters. Check the selected unit, UK supply, included filter, delivery and returns on the current offer.
Check the regional specification before comparing costs
The manufacturer's linked Core 300S UK manual, page 2, specifies a 220–240V supply, 39W rated power and 258m³/h CADR. Older marketplace copy for a Core 300S quotes 23W and other listings quote 240m³/h. Do not combine those figures into one supposedly exact specification or assume the manual describes every older unit.
The linked Core 600S UK manual identifies LAP-C601S-WUK and gives 49W rated power. Its UK product description states 697m³/h CADR, while one graphic quotes 711m³/h. This guide uses the description figure and flags the inconsistency rather than treating the two as interchangeable.
Rated watts help make an illustrative budget, but are not measured consumption at each fan setting. Use the actual appliance label and your tariff; our Core 600S filter and running-cost guide covers the ownership calculation in detail.
Filters and ongoing ownership
Levoit's UK Core 300S page specifies Core 300-RF for the original replacement filter; the UK manufacturer sells it for Core 300 and Core 300S. The Core 600S page specifies Core 600S-RF. These are different filter families: “fits Levoit” alone is insufficient compatibility information.
The Core 300S UK manual gives a 6–8 month replacement guideline, depending on conditions. The Core 600S UK manual gives 6–12 months, while its UK replacement-filter listing suggests 6–8 months. Inspect the filter and follow the instructions supplied with your exact unit; these intervals are not guaranteed service life.
Confirm whether a package includes only the installed filter or adds a spare. A listing headed “Core 300/300S replacement filter” is an accessory, even when its image resembles part of the machine.
For a different household problem, read air purifier versus dehumidifier. If your main task is drying washing indoors, our dehumidifier laundry guide explains what to compare.
Frequently asked questions
Is the Core 600S better than the Core 300S?
It has the higher stated CADR and room-area rating, but also a larger cabinet. The Core 300S can be the more suitable purchase for a smaller space; compare room volume, the intended fan setting and ownership costs.
Can I compare 100m² for the 300S with 147m² for the 600S?
Those UK product-page figures use different air-change rates. At two changes per hour the descriptions quote 50m² for the Core 300S and 147m² for the Core 600S. Check the manual supplied with your unit because published specifications vary.
Do the Core 300S and 600S use the same replacement filter?
No. Levoit names Core 300-RF for the Core 300S original filter and Core 600S-RF for the Core 600S. Confirm the exact model compatibility before buying a spare or bundle.
Sources
- Levoit UK Core 300S product page: stated room areas, controls and original filter family.
- Core 300S UK manual: pages 1–2 and 14 for model, specifications and replacement guidance.
- Levoit UK Core 600S product page: room areas, stated CADR and filter family.
- Core 600S UK manual: regional model, power, dimensions and maintenance.
- Levoit UK Core 300/300S filter and Core 600S filter: check current compatibility and replacement guidance.
