The normal suction pressure on an upright vacuum cleaner can vary depending on the specific make and model. There isn't a universal standard for suction pressure among all upright vacuums. The suction power of a vacuum cleaner is typically measured in air watts, kilopascals (kPa), or cubic feet per minute (CFM).
Different vacuum cleaners are designed with varying levels of suction power to accommodate different cleaning needs and surface types. Some vacuums are specifically designed for deep carpet cleaning and may have higher suction pressure, while others are intended for more delicate surfaces like hardwood floors and may have adjustable suction settings to avoid causing damage.
the suction pressure on most upright vacuum cleaners typically falls within the range of 15 to 100 kPa (kilopascals). However, it's important to remember that suction pressure alone doesn't determine the overall cleaning performance of a vacuum cleaner. Other factors, such as the design of the vacuum head, the brush roll agitation, filtration system, and overall airflow, also play crucial roles in how effectively a vacuum can clean.
If you are looking for a vacuum cleaner, I recommend checking the product specifications and user reviews for the specific model you are interested in. That way, you can get a better idea of its suction power and whether it meets your cleaning requirements. Keep in mind that technological advancements may have occurred , so it's always a good idea to refer to the latest information available from the manufacturer or trusted retailers.