A method for monitoring the presence of particulate matter in a fluid sample, the method comprising: receiving the fluid sample inputted to a conduit through an input port, the fluid sample including different sizes of particulate matter, the conduit extending vertically from the input port to an output port, the output port disposed at a vertically higher level of the conduit than the input port; controlling a flow of the fluid sample through the conduit from the input port to the output port to age the particulate matter resident in the conduit, a first portion of the particulate matter resident in the conduit reducing in aerodynamic equivalent diameter size due to the aging; outputting the first portion of the particulate matter in the fluid sample from the output port of the conduit; and monitoring a presence of the first portion of the particulate matter outputted from the output port of the conduit; the method further comprising: utilizing gravitational forces to separate, in the conduit, particles comprising a higher aerodynamic equivalent diameter size in the fluid sample from particles comprising a lower aerodynamic equivalent size in the fluid sample; simulating aging of the particulate matter by controlling environmental parameters of the fluid sample in the conduit, wherein the environmental parameters comprise the temperature of the fluid sample or the relative humidity of the fluid sample, in which a second portion of the particulate matter received from the input port increases in aerodynamic equivalent size during the aging based on the controlled environmental parameters, the second portion of the particulate matter settling in a basin of the conduit below the input port due to the gravitational forces as opposed to being otherwise outputted from the output port with particles of the particulate matter that do not have a high enough aerodynamic equivalent diameter size to settle in the basin due to the gravitational forces. receiving the fluid sample inputted to a conduit through an input port, the fluid sample including different sizes of particulate matter, the conduit extending vertically from the input port to an output port, the output port disposed at a vertically higher level of the conduit than the input port; controlling a flow of the fluid sample through the conduit from the input port to the output port to age the particulate matter resident in the conduit, a first portion of the particulate matter resident in the conduit reducing in aerodynamic equivalent diameter size due to the aging; outputting the first portion of the particulate matter in the fluid sample from the output port of the conduit; and monitoring a presence of the first portion of the particulate matter outputted from the output port of the conduit; the method further comprising: utilizing gravitational forces to separate, in the conduit, particles comprising a higher aerodynamic equivalent diameter size in the fluid sample from particles comprising a lower aerodynamic equivalent size in the fluid sample; simulating aging of the particulate matter by controlling environmental parameters of the fluid sample in the conduit, wherein the environmental parameters comprise the temperature of the fluid sample or the relative humidity of the fluid sample, in which a second portion of the particulate matter received from the input port increases in aerodynamic equivalent size during the aging based on the controlled environmental parameters, the second portion of the particulate matter settling in a basin of the conduit below the input port due to the gravitational forces as opposed to being otherwise outputted from the output port with particles of the particulate matter that do not have a high enough aerodynamic equivalent diameter size to settle in the basin due to the gravitational forces. utilizing gravitational forces to separate, in the conduit, particles comprising a higher aerodynamic equivalent diameter size in the fluid sample from particles comprising a lower aerodynamic equivalent size in the fluid sample; simulating aging of the particulate matter by controlling environmental parameters of the fluid sample in the conduit, wherein the environmental parameters comprise the temperature of the fluid sample or the relative humidity of the fluid sample, in which a second portion of the particulate matter received from the input port increases in aerodynamic equivalent size during the aging based on the controlled environmental parameters, the second portion of the particulate matter settling in a basin of the conduit below the input port due to the gravitational forces as opposed to being otherwise outputted from the output port with particles of the particulate matter that do not have a high enough aerodynamic equivalent diameter size to settle in the basin due to the gravitational forces.