The airflow direction is left to right when viewed from the rear, which is right to left when viewed from the front, as shown in the figure. On the attached picture of the packaging (unfortunately not shown in the product photo), I marked the arrow with silver paint so that you can see it.
π§ NANPU 1/2" NPT Compressed Air Filter Regulator Combo Piggyback with Auto Drain, 5 Micron Brass Element, Poly Bowl, Metal Bracket, and 0-150 psi Gauge
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Filter under the sink Aquaphor Favorit ECO silver
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NANPU Compressed Air Filter Regulator Combo: Brass Element, Semi-Auto Drain, 0-150 Psi Gauge, And More
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NANPU 1/2" NPT Air Drying System - 5 Micron Particulate Filter, 0.01 Micron Coalescing Filter, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl W/Metal Gauge
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Air purifier Kitfort KT-2826
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π¬οΈ Nordic Pure 16x20x1 Pleated Air Filter 16x20x1M12 6 Pack - High Performance Filtration Solution
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π¨ Filtrete FAPF024: The Ultimate Air Cleaning Filter for a Healthier Home
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π·οΈ Nordic Pure 20X25X5 Pleated Replacement Filter
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