Our take
T48339 is a documented 48-inch tower with four speeds, remote, eight-hour timer and gradual Night Mode; timer compatibility with that mode is not settled.
Consider it when the T48339 code, four speeds, remote and gradual night sequence suit the routine; verify the condition on any current listing..
Not for a buyer who needs confirmed current renewed condition, exact historical ASIN mapping, a measured sound result or timer operation during Night Mode.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The shared official manual supports four speeds, oscillation, remote operation and an eight-hour timer.
- Night Mode has a defined speed-four-to-one step-down and dims the lights by 50%.
- Lasko's separate support article identifies T48339 as the Ultra Air model with a nighttime setting.
What to weigh up
- The saved T48339 evidence does not say whether the timer continues during Night Mode.
- The historical ASIN B0B8PJM5TN is a third-party renewed-model association, not a current Amazon offer.
- No source provides measured airflow, sound level or room-coverage results.
The key details
| Model covered | T48339 |
|---|---|
| Controls | 48-inch tower fan with four speeds and oscillation |
| Timer | Remote operation and timer reaching eight hours |
| Other verified details | Night Mode dims lights 50% and steps from speed four to speed one |
Performance figures are manufacturer claims. Source checked October 10, 2026. Regional models and included accessories can differ.
What the features mean for you
Controls and model-specific scope
Lasko's support article names T48339 as a 48-inch Ultra Air tower fan, and the linked shared manual documents four speeds, oscillation, remote operation and an eight-hour timer. That gives shoppers a concrete set of controls to compare: they can choose a speed, use the remote and schedule shutoff. The 48-inch label describes a height class, not a measured room-size recommendation. The shared manual also names T48335 as a distinct code, so its instructions do not make the products interchangeable. Check the exact T48339 label on a seller item rather than choosing by “Ultra Air” family wording alone.
A staged Night Mode
The T48339 Night Mode dims the lights by 50%, runs at speed four for an hour, then speed three for an hour, speed two for an hour, and finally speed one until the user interacts with the fan. This provides a defined step-down for someone who wants the fan to start at a stronger setting and lower its speed over time. A buyer who prefers low speed immediately can use the regular speed controls instead. The sequence should not be summarized as a measured quiet mode: no independent sound result is saved. It is also distinct from T48322's different nighttime program.
Timer and nighttime behavior
The shared manual gives T48339 a timer reaching eight hours, which meets an eight-hour duration threshold. It does not state whether the timer keeps running while Night Mode is active. T48322 explicitly cannot use its nighttime setting with its selectable timer, but that rule belongs to that different model and cannot be copied here. Conversely, having both controls does not prove they operate together. If the purchase depends on a timed shutoff during the full speed sequence, check the exact T48339 instructions before relying on that combination. The profile records timer maximum and Night Mode separately and leaves simultaneous operation unresolved.
Historical listing and condition
A third-party ASIN-keyed record associates B0B8PJM5TN with a renewed T48339 listing, but Amazon's own page did not load and no current exact offer was verified. The saved sources do not establish the finish, current condition or package contents for a present item. Use the tagged T48339 search as a discovery destination, not a direct historical-ASIN link. Confirm the model number, renewed status, remote and included parts on the actual offer. Keep T48339 distinct from T48335 and T48337 even though related manuals cover more than one code.
Evidence and recommendation
This review uses Lasko's support entry and shared instruction manual, with a reseller record for the historical renewed-model association. It is not a hands-on test or a summary of buyer reviews. The official sources support the 48-inch model, four speeds, oscillation, remote, eight-hour timer and Night Mode sequence. They do not establish voltage, frequency, wattage, measured airflow, sound or current price and stock. T48339 is a reasonable model to compare when those controls fit the planned routine. It is not a confirmed match when exact current condition, a particular finish, measured performance or timer operation during Night Mode determines the choice. The guide is useful for the control sequence, but its silence on timer behavior during Nighttime Setting should remain a buying question rather than an inferred feature. Check the exact model's manual or unit if that combination matters.
What else to compare
Compare T48337 for a separate Xtra Air model with a similar documented control set; verify each model's timer/mode compatibility separately.
Before you buy
What does T48339 Night Mode do?
It dims the lights by 50%, runs speeds four, three and two for one hour each, then stays at speed one until changed.
Can Night Mode and the timer run together?
The saved T48339 manual details do not establish whether the timer continues during the full nighttime sequence.
Is B0B8PJM5TN a current renewed Amazon offer?
No current offer is verified; a reseller record associates it with renewed T48339, but the Amazon page was unreadable.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Lasko model-specific T48339 support entry ↗ — checked October 10, 2026.
- Lasko official model-specific T48339 support article ↗ — checked October 10, 2026.
- Lasko T48335/T48339 manual; height class, speeds, oscillation, timer and night sequence ↗ — checked October 10, 2026.
The decision
Choose T48339 for its documented remote, four speeds and staged Night Mode only after confirming the exact model and current condition.
Is it the right fit?
Check the exact model and today’s offers on Amazon.