Filtration and purification processing method

A filtration and purification processing method, comprising:

• (1) providing a filtration and purification device, wherein the filtration and purification device comprises a plurality of filtration passage layers stacked with each other, and each of the filtration passage layers comprises a plurality of purification chambers, a convergence chamber, and a circulation channel, wherein the purification chambers are arranged in parallel and bottoms of the purification chambers are in communication with the convergence chamber, and the circulation channel is in communication with the convergence chamber, wherein each of the purification chambers comprise at least one flow-guiding unit, at least one filtration unit, at least one gas sensor, and an outlet valve, wherein the circulation channel has an inlet valve disposed between the convergence chamber and the circulation channel, and each of the outlet valves is disposed between the corresponding purification chamber and the convergence chamber, and wherein each of the outlet valves controls the communication between the corresponding purification chamber and the convergence chamber, and the inlet valve control the communication between the convergence chamber and the circulation channel;
• (2) performing a gas introduction, filtration, and detection procedure, wherein in each of the filtration passage layers, the outlet valve of each of the purification chambers is opened and the at least one flow-guiding unit is driven to introduce a gas outside the filtration and purification device into each of the purification chambers, and in each of the purification chambers of each of the filtration passage layers, the at least one filtration unit filters the gas to obtain a purified gas, and the purified gas is introduced to the convergence chamber;
• (3) performing a detection and determination procedure to the purified gas, wherein the at least one gas sensor of each of the purification chambers of each of the filtration passage layers detects a gas quality of the purified gas to determine if a gas quality of the purified gas reaches a threshold for breathing;
• (4) performing a circulating filtration and detection procedure to the purified gas, wherein when the purified gas of each of the filtration passage layers does not reach the threshold for breathing, the purified gas of each of the filtration passage layers is circulated, filtered, and detected again, in each of the filtration passage layers, the outlet valve of the purification chamber where the at least one gas sensor is located is controlled to be closed, the outlet valves of the purification chambers of a next filtration passage layer are closed, and the inlet valve of the circulation channel of a previous filtration passage layer is opened, so that the purified gas of the previous filtration passage layer is capable of being introduced back to the previous filtration passage layer for circulating, filtering, and detecting;
• and
• (5) repeating filtration and purification procedures to the purified gas several times and guiding out the purified gas, wherein the purified gas in the convergence chamber of the previous filtration passage layer enters into the filtration units of the purification chambers of the next filtration passage layer to be filtered and purified for second-time, and the outlet valves of the next filtration passage layer are opened when the purified gas of the next filtration passage layer reaches the threshold for breathing, and the purified gas of the next filtration passage layer is introduced into a last filtration passage layer to be filtered and purified and discharged out of the filtration and purification device.