Our take
The legacy manual supports a 40-inch 5AU42/9215 tower fan with three speeds, remote and a selectable timer through 7.5 hours.
Compare when a remote and up-to-7.5-hour timer suit; confirm the model label and package on any current offer..
Not for a buyer requiring an eight-hour or longer selectable timer, a current exact ASIN or a measured noise and airflow comparison.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The manual names model 5AU42/9215 and its 40-inch tower form.
- Three speeds, remote control and selectable oscillation are documented at model scope.
- The timer and separate six-hour low-speed Sleep behavior are clearly distinguished.
What to weigh up
- The selectable timer stops at 7.5 hours and does not meet an eight-hour minimum.
- Rev. B 7/05 documentation does not establish current production or support.
- The historical Amazon ASIN, electrical input and independent performance remain unresolved.
The key details
| Model covered | 5AU42/9215 |
|---|---|
| Controls | Manual identifies a 40-inch model 5AU42/9215 tower fan |
| Timer | Three speeds, remote and selectable oscillation |
| Other verified details | 30-minute timer steps reach 7.5 hours; separate Sleep behavior is six hours on low |
Performance figures are manufacturer claims. Source checked October 3, 2026. Regional models and included accessories can differ.
What the features mean for you
Is the 5AU42/9215 a current 40-inch model?
Air King 5AU42/9215 is a model-level lead for someone considering a full-height floor tower. Its Rev. B 7/05 operating manual names a 40-inch tower fan and prints the 5AU42/9215 model code. That supports the identity and controls in this review, but it does not establish present manufacturing, service support or that historical ASIN B0007Q3RL6 points to this exact item today. The old Amazon page was unreadable. Use the tagged model search as a discovery route, then compare the complete model code on the item and its manual before relying on the stated functions.
What do its speeds, oscillation and remote offer?
The manual documents three speed settings, selectable oscillation and a remote. These provide familiar adjustments for a tower fan and can be useful when a buyer wants to change settings without walking to the appliance. The manual does not provide a numeric sweep angle, independent airflow result, noise comparison or room-size rating. Do not infer how much air reaches a particular seat or that oscillation covers a defined angle. The model-level remote detail also does not guarantee what accessories accompany a marketplace listing, so confirm its package before purchase.
Does the selectable timer reach eight hours?
The selectable timer uses half-hour steps from 30 minutes through 7.5 hours. Separately, the manual describes a Sleep control that runs the fan on low for six continuous hours. Those are distinct behaviors: Sleep does not extend the selectable timer, and neither supports an eight-hour minimum. This distinction matters for a buyer who wants automatic shutoff through a full overnight or work session. The saved instructions do not establish every possible combination of timer and speed, so do not assume the Sleep control creates a longer schedule.
What does the legacy manual leave open?
The manual is model-specific but old, and its table's power and sound figures are not used as an independent electrical or acoustic comparison. The packet does not resolve the current offer associated with B0007Q3RL6, water-versus-dry operation, app control, battery type or present support. It also has no independent airflow, coverage or sound test. Buyers with electrical procurement rules, a required tank status or a measured noise limit need stronger current evidence. Do not treat a legacy manual as a guarantee that a product is still made or available.
Who should compare the Air King model?
This model may suit a buyer who wants the manual-documented remote, three speeds and a selectable shutoff shorter than eight hours. It is a poor fit when a longer timer, verified current offer, exact electrical values, quietness or room coverage is mandatory. Search by 5AU42/9215, compare the printed model code, and confirm the accessories on the current seller page. The review relies on saved manual text and does not claim personal testing, customer-review summaries, present inventory or price. A historical ASIN is retained only as a research clue, not as a current direct product link.
What else to compare
Before you buy
What timer range does the manual provide?
It lists selectable half-hour steps from 30 minutes through a maximum of 7.5 hours.
Does Sleep extend the timer to eight hours?
No. Sleep is a separate six-hour low-speed behavior, not an extension of the selectable timer.
Is B0007Q3RL6 verified as a current exact offer?
No. The historical Amazon page was unreadable, so use the tagged model search and check the item code.
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.
- Air King 5AU42/9215 operating manual, Rev. B 7/05 ↗ — checked October 3, 2026.
- Air King 5AU42/9215 operating manual, Rev. B 7/05; indexed pages identify controls and timer ↗ — checked October 3, 2026.
- Historical Amazon ASIN; direct page returned an internal error and exact current offer is unverified ↗Paid link · We may earn a commission. — checked October 3, 2026.
The decision
The legacy manual supports a 40-inch 5AU42/9215 tower fan with three speeds, remote and a selectable timer through 7.5 hours.
Is it the right fit?
Check the exact model and today’s offers on Amazon.